<div class="sidebar-nav">
    <ol>全部</ol>
    <ul>
        <li class="active"><a href="/news_list.html">全部</a></li>
        <volist name="category_news" id="val">
            <li class='<eq name="router" value="$val.dir">active</eq>' >
                <a href="/{$val.dir}.html" class="">{$val.name}</a>
            </li>
        </volist>
    </ul>
</div>